Product Description
. . . . . Johnson Controls P32AC-1 Sensitive Differential Pressure Switch (0.15 to 12.0" WC) - The P32 differential pressure switch is used to sense flow of air in ducts. When used with electric strip heaters, the switch can be wired to open the circuit and deenergize the heaters when air flow stops. Typical applications include:. Johnson Controls. Johnson Controls. P32AC-1.